Hi everyone,
I'm happy to announce that Opus 1.4 has just been released. It is
available at:
https://downloads.xiph.org/releases/opus/opus-1.4.tar.gz
This new release brings the following improvements and fixes:
- Improved tuning of the Opus in-band FEC (LBRR). See
https://gitlab.xiph.org/xiph/opus/-/issues/2360 for details
- Added an OPUS_SET_INBAND_FEC(2) option that turns on FEC, but does not
force SILK mode (FEC will be disabled in CELT mode)
- Improved tuning and various fixes to DTX
- Added Meson support, improved CMake support
In addition to the improvements above, this release includes many minor
bug fixes.
Additionally, we have begun experiments on two upcoming major features:
- neural packet loss concealment:
https://arxiv.org/pdf/2205.05785.pdf
- deep redundancy:
https://www.amazon.science/blog/neural-encoding-enables-more-efficient-recovery-of-lost-audio-packets
Although not included in this release, you can see two IETF drafts
describing the proposed improvements:
- https://datatracker.ietf.org/doc/draft-valin-opus-extension/
- https://datatracker.ietf.org/doc/draft-valin-opus-dred/
The code is also available on this development branch:
https://gitlab.xiph.org/xiph/opus/-/tree/exp_neural_fec3
Please report any problem you encounter.
Cheers,
Jean-Marc
On 2023-04-20, Jean-Marc Valin wrote:> Hi everyone, > > I'm happy to announce that Opus 1.4 has just been released. It is > available at: https://downloads.xiph.org/releases/opus/opus-1.4.tar.gz > > This new release brings the following improvements and fixes: > - Improved tuning of the Opus in-band FEC (LBRR). See > https://gitlab.xiph.org/xiph/opus/-/issues/2360 for details > - Added an OPUS_SET_INBAND_FEC(2) option that turns on FEC, but does not > force SILK mode (FEC will be disabled in CELT mode) > - Improved tuning and various fixes to DTX > - Added Meson support, improved CMake support > In addition to the improvements above, this release includes many minor bug > fixes.> Although not included in this release, you can see two IETF drafts > describing the proposed improvements: - > https://datatracker.ietf.org/doc/draft-valin-opus-extension/ - > https://datatracker.ietf.org/doc/draft-valin-opus-dred/Are those Proposed Standards? -- Sampo Syreeni, aka decoy - decoy at iki.fi, http://decoy.iki.fi/front +358-40-3751464, 025E D175 ABE5 027C 9494 EEB0 E090 8BA9 0509 85C2
On 2023-04-20 21:03, Sampo Syreeni wrote:>> Although not included in this release, you can see two IETF drafts >> describing the proposed improvements: - >> https://datatracker.ietf.org/doc/draft-valin-opus-extension/ - >> https://datatracker.ietf.org/doc/draft-valin-opus-dred/ > > Are those Proposed Standards?These are individual Internet-Drafts, i.e. the very first step in the process. The term Proposed Standard is for specs that are actually approved by IETF. For example, the published RFC describing Opus (RFC 6716) is a Proposed Standard.